Heart rate dynamics during a treadmill cardiopulmonary exercise test in optimized beta-blocked heart failure patients
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Clinics |
Texto Completo: | https://www.revistas.usp.br/clinics/article/view/17776 |
Resumo: | BACKGROUND: Calculating the maximum heart rate for age is one method to characterize the maximum effort of an individual. Although this method is commonly used, little is known about heart rate dynamics in optimized beta-blocked heart failure patients. AIM: The aim of this study was to evaluate heart rate dynamics (basal, peak and % heart rate increase) in optimized beta-blocked heart failure patients compared to sedentary, normal individuals (controls) during a treadmill cardiopulmonary exercise test. METHODS: Twenty-five heart failure patients (49±11 years, 76% male), with an average LVEF of 30±7%, and fourteen controls were included in the study. Patients with atrial fibrillation, a pacemaker or noncardiovascular functional limitations or whose drug therapy was not optimized were excluded. Optimization was considered to be 50 mg/day or more of carvedilol, with a basal heart rate between 50 to 60 bpm that was maintained for 3 months. RESULTS: Basal heart rate was lower in heart failure patients (57±3 bpm) compared to controls (89±14 bpm; p |
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Clinics |
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Heart rate dynamics during a treadmill cardiopulmonary exercise test in optimized beta-blocked heart failure patients Heart failureHeart rateCarvedilolExerciseOptimization BACKGROUND: Calculating the maximum heart rate for age is one method to characterize the maximum effort of an individual. Although this method is commonly used, little is known about heart rate dynamics in optimized beta-blocked heart failure patients. AIM: The aim of this study was to evaluate heart rate dynamics (basal, peak and % heart rate increase) in optimized beta-blocked heart failure patients compared to sedentary, normal individuals (controls) during a treadmill cardiopulmonary exercise test. METHODS: Twenty-five heart failure patients (49±11 years, 76% male), with an average LVEF of 30±7%, and fourteen controls were included in the study. Patients with atrial fibrillation, a pacemaker or noncardiovascular functional limitations or whose drug therapy was not optimized were excluded. Optimization was considered to be 50 mg/day or more of carvedilol, with a basal heart rate between 50 to 60 bpm that was maintained for 3 months. RESULTS: Basal heart rate was lower in heart failure patients (57±3 bpm) compared to controls (89±14 bpm; pHospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo2008-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/clinics/article/view/1777610.1590/S1807-59322008000400011Clinics; Vol. 63 No. 4 (2008); 479-482 Clinics; v. 63 n. 4 (2008); 479-482 Clinics; Vol. 63 Núm. 4 (2008); 479-482 1980-53221807-5932reponame:Clinicsinstname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/clinics/article/view/17776/19841Carvalho, Vitor OliveiraGuimarães, Guilherme VeigaCiolac, Emmanuel GomesBocchi, Edimar Alcidesinfo:eu-repo/semantics/openAccess2012-05-22T18:32:02Zoai:revistas.usp.br:article/17776Revistahttps://www.revistas.usp.br/clinicsPUBhttps://www.revistas.usp.br/clinics/oai||clinics@hc.fm.usp.br1980-53221807-5932opendoar:2012-05-22T18:32:02Clinics - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Heart rate dynamics during a treadmill cardiopulmonary exercise test in optimized beta-blocked heart failure patients |
title |
Heart rate dynamics during a treadmill cardiopulmonary exercise test in optimized beta-blocked heart failure patients |
spellingShingle |
Heart rate dynamics during a treadmill cardiopulmonary exercise test in optimized beta-blocked heart failure patients Carvalho, Vitor Oliveira Heart failure Heart rate Carvedilol Exercise Optimization |
title_short |
Heart rate dynamics during a treadmill cardiopulmonary exercise test in optimized beta-blocked heart failure patients |
title_full |
Heart rate dynamics during a treadmill cardiopulmonary exercise test in optimized beta-blocked heart failure patients |
title_fullStr |
Heart rate dynamics during a treadmill cardiopulmonary exercise test in optimized beta-blocked heart failure patients |
title_full_unstemmed |
Heart rate dynamics during a treadmill cardiopulmonary exercise test in optimized beta-blocked heart failure patients |
title_sort |
Heart rate dynamics during a treadmill cardiopulmonary exercise test in optimized beta-blocked heart failure patients |
author |
Carvalho, Vitor Oliveira |
author_facet |
Carvalho, Vitor Oliveira Guimarães, Guilherme Veiga Ciolac, Emmanuel Gomes Bocchi, Edimar Alcides |
author_role |
author |
author2 |
Guimarães, Guilherme Veiga Ciolac, Emmanuel Gomes Bocchi, Edimar Alcides |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Carvalho, Vitor Oliveira Guimarães, Guilherme Veiga Ciolac, Emmanuel Gomes Bocchi, Edimar Alcides |
dc.subject.por.fl_str_mv |
Heart failure Heart rate Carvedilol Exercise Optimization |
topic |
Heart failure Heart rate Carvedilol Exercise Optimization |
description |
BACKGROUND: Calculating the maximum heart rate for age is one method to characterize the maximum effort of an individual. Although this method is commonly used, little is known about heart rate dynamics in optimized beta-blocked heart failure patients. AIM: The aim of this study was to evaluate heart rate dynamics (basal, peak and % heart rate increase) in optimized beta-blocked heart failure patients compared to sedentary, normal individuals (controls) during a treadmill cardiopulmonary exercise test. METHODS: Twenty-five heart failure patients (49±11 years, 76% male), with an average LVEF of 30±7%, and fourteen controls were included in the study. Patients with atrial fibrillation, a pacemaker or noncardiovascular functional limitations or whose drug therapy was not optimized were excluded. Optimization was considered to be 50 mg/day or more of carvedilol, with a basal heart rate between 50 to 60 bpm that was maintained for 3 months. RESULTS: Basal heart rate was lower in heart failure patients (57±3 bpm) compared to controls (89±14 bpm; p |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://www.revistas.usp.br/clinics/article/view/17776 10.1590/S1807-59322008000400011 |
url |
https://www.revistas.usp.br/clinics/article/view/17776 |
identifier_str_mv |
10.1590/S1807-59322008000400011 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/clinics/article/view/17776/19841 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo |
publisher.none.fl_str_mv |
Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo |
dc.source.none.fl_str_mv |
Clinics; Vol. 63 No. 4 (2008); 479-482 Clinics; v. 63 n. 4 (2008); 479-482 Clinics; Vol. 63 Núm. 4 (2008); 479-482 1980-5322 1807-5932 reponame:Clinics instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Clinics |
collection |
Clinics |
repository.name.fl_str_mv |
Clinics - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
||clinics@hc.fm.usp.br |
_version_ |
1800222753516683264 |